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terraform-vault/modules/vault_cluster/modules/plugin/main.tf
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unkinben 3d59758324
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Add a plugin-import module + config/plugins for catalog registration (#89)
Split plugin catalog registration out of the per-engine backend modules into its own concern (previously bundled into #87's gpg_secret_backend).

## Changes
- New generic `plugin` module (`vault_plugin`: type/name/command/sha256/plugin_version) that imports a binary into the catalog.
- New `config/plugins/` discovery group (filename = catalog name = mount type), wired through `vault_cluster` (`plugins` variable + module) and the syd1 environment.
- `config/plugins/vault-plugin-secrets-gpg.yaml` pins the released v0.1.0 binary sha256 (`0e92d740…a7b20`, from the published RPM). Puppet installs the RPM floating, so bump this in lockstep on upgrade.

Any engine now registers its plugin by dropping a file in `config/plugins/`; its `*_secret_backend` module just mounts the registered type.

Needs the deployer's plugin-catalog access (#88). Merge order: **#88 → this → #87**.

Reviewed-on: #89
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>
2026-07-17 23:08:04 +10:00

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Terraform

# Registers ("imports") a plugin binary in the Vault/OpenBao plugin catalog so
# it can be mounted. The binary must already exist in the server
# plugin_directory (installed out of band, e.g. by Puppet); `command` is its
# filename there. The sha256 must match the on-disk binary or the server refuses
# to launch the plugin.
resource "vault_plugin" "this" {
type = var.type
name = var.name
command = coalesce(var.command, var.name)
sha256 = var.sha256
version = var.plugin_version
}